Psycho ex advice??

So I have a problem. A girl I broke up with in January will not stop emailing me today. Despite repeated requests to stop.

It started because I got an email from her about a going away party she was planning for herself (which is kinda sad IMHO). I responded to the email and asked her to remove me from her mailing list. No biggie or so I think. If someone emailed me and asked me to stop sending them something I would do so...no big deal. She responds, accusing me of all kinds of crud during the relationship. Dredging up the old arguments, so on so forth. Well I did the stupid thing and responded without thinking carefully. I then send a followup and said that it would be pointless for us to continue to dredge up the past. I asked her to stop emailing me. She responds, and includes her current boyfriend on the email! I have kept on asking nicely for her to stop emailing me. Her boyfriend said that she would no longer contact me and I thought that was the end of it. She however keeps on sending emails. I keep on responding with the words LEAVE ME ALONE. She wont. Its driving me nuts...I have moved on from her. She is seeing someone else now...you would think that would be the end of it...but no! She keeps on sending me emails demading that i take responsibility for the bad things that happened in the relationship. She was always getting filthy text messages while we were dating while telling me that she wanted to be exclusive with me. A few times she would hang out with a guy friend and end up making out with him (i consider that cheating...she told me that it didnt mean anything and I shouldnt get mad over it). She broke up with me, went and slept with a guy the same day she broke up with me and then told me that it was my fault.

I admit that I made mistakes in the relationship. I was pretty clingy (lesson learned...moving on now).

I should never had responded to her email tirade. That was my mistake too. However she wont leave me alone and i am getting really frustrated with things. I cant seem to block her emails on Gmail and i am getting really frustrated with things....

I have told her multiple times to leave me alone and she wont. I am beyond frustrated with this.

STOP REPLYING...every time you send anything to her you are paying attention to her...which is obviously something she both wants and needs. Stop giving it to her. Just because the email shows up in your box...doesn't mean you have to read it. That's what the delete key is for. Now if she's coming across as threatening...you must make a report. Some states now have stalking laws that include internet. Check with your local PD.